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Summer Indoor Heat Pump Water Heater Evaluation In A Hot Dry Climate
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Book Synopsis Summer Indoor Heat Pump Water Heater Evaluation in a Hot-Dry Climate by :
Download or read book Summer Indoor Heat Pump Water Heater Evaluation in a Hot-Dry Climate written by and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat pump water heaters offer a significant opportunity to improve water heating performance for the over 40% of U.S. households that heat domestic hot water using electric resistance storage water heaters. Numerous field studies have also been completed documenting performance in a variety of climates and applications. More recent evaluation efforts have focused attention on the performance of May through September 2014, with ongoing winter monitoring being sponsored by California utility partners. Summer results show favorable system performance with extrapolated annual water heating savings of 1,466 to 2,300 kWh per year, based on the observed hot water loads. Additional summer space cooling benefits savings of 121 to 135 kWh per year were projected, further increasing the water energy savings.
Book Synopsis Building America Case Study: Indoor Heat Pump Water Heaters During Summer in a Hot-Dry Climate, Redding, California by :
Download or read book Building America Case Study: Indoor Heat Pump Water Heaters During Summer in a Hot-Dry Climate, Redding, California written by and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat pump water heaters offer a significant opportunity to improve water heating performance for the over 40% of U.S. households that heat domestic hot water using electric resistance storage water heaters. Numerous field studies have also been completed documenting performance in a variety of climates and applications. More recent evaluation efforts have focused attention on the performance of May through September 2014, with ongoing winter monitoring being sponsored by California utility partners. Summer results show favorable system performance with extrapolated annual water heating savings of 1,466 to 2,300 kWh per year, based on the observed hot water loads. Additional summer space cooling benefits savings of 121 to 135 kWh per year were projected, further increasing the water heating savings by 5-9%. Given the project schedule for 2014 completion, no heating season impacts were able to be monitored. May through September 2014, with ongoing winter monitoring being sponsored by California utility partners. Summer results show favorable system performance with extrapolated annual water heating savings of 1,466 to 2,300 kWh per year, based on the observed hot water loads. Additional summer space cooling benefits savings of 121 to 135 kWh per year were projected, further increasing the water heating savings by 5-9%. Given the project schedule for 2014 completion, no heating season impacts were able to be monitored.
Book Synopsis Laboratory Performance Evaluation of Residential Integrated Heat Pump Water Heaters by :
Download or read book Laboratory Performance Evaluation of Residential Integrated Heat Pump Water Heaters written by and published by . This book was released on 2014 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper explores the laboratory performance of five integrated Heat Pump Water Heaters (HPWHs) across a wide range of operating conditions representative of US climate regions. HPWHs are expected to provide significant energy savings in certain climate zones when compared to typical electric resistance water heaters. Results show that this technology is a viable option in most climates, but differences in control schemes and design features impact the performance of the units tested. Tests were conducted to map heat pump performance across the operating range and to determine the logic used to control the heat pump and the backup electric heaters. Other tests performed include two unique draw profile tests, reduced air flow performance tests and the standard DOE rating tests. The results from all these tests are presented here for all five units tested. The results of these tests will be used to improve the EnergyPlus heat pump water heater for use in BEopt(tm) whole-house building simulations.
Book Synopsis Laboratory Performance Evaluation of Residential Integrated Heat Pump Water Heaters by : Bethany Sparn
Download or read book Laboratory Performance Evaluation of Residential Integrated Heat Pump Water Heaters written by Bethany Sparn and published by . This book was released on 2011 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses how domestic hot water heating can be a significant opportunity for energy savings. An emerging technology has recently arrived in the U.S. market: the residential integrated heat pump water heater (HPWH). A laboratory evaluation is presented of the five integrated HPWHs available in the U.S. today.
Book Synopsis Research Gap Analysis for Zero-net Energy Buildings by : Smita Gupta
Download or read book Research Gap Analysis for Zero-net Energy Buildings written by Smita Gupta and published by . This book was released on 2019 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Heat Pump Water Heater Performance and Optimization Strategies In Cold Climates by : Jayson Bursill
Download or read book Evaluation of Heat Pump Water Heater Performance and Optimization Strategies In Cold Climates written by Jayson Bursill and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Analysis of Heat Pump Water Heater Systems in Hot-humid Climates by : Obinna Uyanna
Download or read book Performance Analysis of Heat Pump Water Heater Systems in Hot-humid Climates written by Obinna Uyanna and published by . This book was released on 2016 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current overdependence on fossil fuel as the means of energy generation ensures that eventually, energy and utility costs will be extremely high since these fossil materials are depletive in nature. However, the research and development of energy efficient devices offers a viable solution to this situation. One such device is the heat pump water heater (HPWH), a device that utilizes a reverse refrigeration cycle to generate domestic hot water (DHW) for residential use. The performance of HPWHs in hot-humid climates was analyzed since such areas have high solar energy concentration, especially in the summer. Although electric resistance water heaters (ER WHs) are currently the main source of DHW generation, HPWHs are believed to be the more efficient water heating option. In this work, BEopt, which is a building energy-optimization software, was used to perform simulations of HPWHs and ERWHs in two selected hot-humid climates. With certain user-defined inputs, four simulation cases were generated and tests were run that showed the performance of these water heaters. The results showed that HPWHs were immensely more efficient, having efficiencies of 3.3 and 3.56 in the two test location while ERWHs had efficiencies of 0.88 and 0.9. The results also showed a significant amount of utility savings, reduced consumed energy as well as reduced CO, emissions when compared to ERWHs. It was also shown in the results that the units with HPWHs had significantly higher cooling energy values when compared to units with ERWHs thus leading to a better space cooling and comfort level for occupants of homes on hot-humid climates.
Book Synopsis Technology Solutions Case Study by :
Download or read book Technology Solutions Case Study written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Over recent years, heat pump water heaters (HPWHs) have become more readily available and more widely adopted in the marketplace. For a 6-month period, the Building America team Consortium for Advanced Residential Buildings monitored the performance of a GE Geospring HPWH in Windermere, Florida. The study found that the HPWH performed 144% more efficiently than a traditional electric resistance water heater, saving approximately 64% on water heating annually. The monitoring showed that the domestic hot water draw was a primary factor affecting the system's operating efficiency.
Book Synopsis Heated Water Systems by : Standards Australia Limited
Download or read book Heated Water Systems written by Standards Australia Limited and published by . This book was released on 2021 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Standard sets out a method for evaluating the annual energy performance of water heaters using a combination of test results for component performance and mathematical models to determine the standardized annual supplementary energy use. Keywords: water heater; water heater energy evaluation; energy saving; energy performance; water heating technology; thermal collector; heat pump; photovoltaic array; thermal storage tank; solar water heater; heat pump water heater" - Standards NZ website
Book Synopsis Evaluation of an Indirect Solar Assisted Heat Pump Water Heater in the Canadian Environment by : Bryn Davis Elliott
Download or read book Evaluation of an Indirect Solar Assisted Heat Pump Water Heater in the Canadian Environment written by Bryn Davis Elliott and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NEEA Heat Pump Water Heater Field Study Report by : Fluid Market Strategies
Download or read book NEEA Heat Pump Water Heater Field Study Report written by Fluid Market Strategies and published by . This book was released on 2013 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report focuses on the detailed metering findings on 30 homes selected to evaluate the operation of Northern Climate Specification qualified Tier 2 Heat Pump Water Heaters (HPWHs). Overall in-field metering results suggest that units installed in conditioned spaces with warmer ambient air temperatures demonstrate higher Coefficient of Performance (COP) on average. Furthermore, the field study confirms that HPWHs are an efficient technology. Incorporating this information into future planning and program design efforts will help ensure future use of the technology"--Publisher's description (viewed August 19, 2016).
Book Synopsis Performance of a Heat Pump Water Heater in the Hot-Humid Climate, Windermere, Florida (Fact Sheet). by :
Download or read book Performance of a Heat Pump Water Heater in the Hot-Humid Climate, Windermere, Florida (Fact Sheet). written by and published by . This book was released on 2013 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over recent years, heat pump water heaters (HPWHs) have become more readily available and more widely adopted in the marketplace. For a 6-month period, the Building America team Consortium for Advanced Residential Buildings monitored the performance of a GE Geospring HPWH in Windermere, Florida. The study found that the HPWH performed 144% more efficiently than a traditional electric resistance water heater, saving approximately 64% on water heating annually. The monitoring showed that the domestic hot water draw was a primary factor affecting the system's operating efficiency.
Book Synopsis Side-by-Side Testing of Water Heating Systems: Results from the 2013-2014 Evaluation by :
Download or read book Side-by-Side Testing of Water Heating Systems: Results from the 2013-2014 Evaluation written by and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Florida Solar Energy Center (FSEC) has completed a fourth year-long evaluation on residential hot water heating systems in a laboratory environment (east central Florida, hot-humid climate). This report contains a summary of research activities regarding the evaluation of two residential electric heat pump water heaters (HPWHs), a solar thermal system utilizing a polymer glazed absorber and a high efficiency natural gas system.
Book Synopsis Residential Heat Pump Water Heater Evaluation by : Ben Larson
Download or read book Residential Heat Pump Water Heater Evaluation written by Ben Larson and published by . This book was released on 2011 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes laboratory testing and modeling exercises performed to assess potential heat pump water heater (HPWH) energy savings in the Pacific Northwest. Three integrated HPWH models, pairing two electric resistance elements with a tank-mound heat pump, were thoroughly investigated: the AO Smith Voltex, the GE GeoSpring, and the Rheem EcoSense. The report summarizes lab findings, describes the determinants of consumption, and develops annual operating efficiency and energy savings estimates for HPWH installations in unheated buffer spaces and interior conditioned spaces throughout the Northwest.
Book Synopsis NREL Tests Integrated Heat Pump Water Heater Performance in Different Climates (Fact Sheet). by :
Download or read book NREL Tests Integrated Heat Pump Water Heater Performance in Different Climates (Fact Sheet). written by and published by . This book was released on 2012 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical highlight describes NREL tests to capture information about heat pump performance across a wide range of ambient conditions for five heat pump water heaters (HPWH). These water heaters have the potential to significantly reduce water heater energy use relative to traditional electric resistance water heaters. These tests have provided detailed performance data for these appliances, which have been used to evaluate the cost of saved energy as a function of climate. The performance of HPWHs is dependent on ambient air temperature and humidity and the logic controlling the heat pump and the backup resistance heaters. The laboratory tests were designed to measure each unit's performance across a range of air conditions and determine the specific logic controlling the two heat sources, which has a large effect on the comfort of the users and the energy efficiency of the system. Unlike other types of water heaters, HPWHs are both influenced by and have an effect on their surroundings. Since these effects are complex and different for virtually every house and climate region, creating an accurate HPWH model from the data gathered during the laboratory tests was a main goal of the project. Using the results from NREL's laboratory tests, such as the Coefficient of Performance (COP) curves for different air conditions as shown in Figure 1, an existing HPWH model is being modified to produce more accurate whole-house simulations. This will allow the interactions between the HPWH and the home's heating and cooling system to be evaluated in detail, for any climate region. Once these modeling capabilities are in place, a realistic cost-benefit analysis can be performed for a HPWH installation anywhere in the country. An accurate HPWH model will help to quantify the savings associated with installing a HPWH in the place of a standard electric water heater. In most locations, HPWHs are not yet a cost-effective alternative to natural gas water heaters. The detailed system performance maps that were developed by this testing program will be used to: (1) Target regions of the country that would benefit most from this technology; (2) Identify improvements in current systems to maximize homeowner cost savings; and (3) Explore opportunities for development of advanced hot water heating systems.
Book Synopsis Regional Variation in Residential Heat Pump Water Heater Performance in the U.S. by :
Download or read book Regional Variation in Residential Heat Pump Water Heater Performance in the U.S. written by and published by . This book was released on 2014 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Residential heat pump water heaters (HPWHs) have recently reemerged on the U.S. market. These units have the potential to provide homeowners significant cost and energy savings. However, actual in use performance of a HPWH will vary significantly with climate, installation location, HVAC equipment, and hot water use. To determine what actual in use energy consumption of a HPWH may be in different regions of the U.S., annual simulations of both 50 and 80 gallon HPWHs as well as a standard electric water heater were performed for over 900 locations across the U.S. The simulations included a benchmark home to take into account interactions between the space conditioning equipment and the HPWH and a realistic hot water draw profile. It was found that the HPWH will always save some source energy when compared to a standard electric resistance water heater, although savings varies widely with location. In addition to looking at source energy savings, the breakeven cost (the net installed cost a HPWH would have to have to be a cost neutral replacement for a standard water heater) was also examined. The highest breakeven costs were seen in cases with high energy savings, such as the southeastern U.S., or high energy costs, such as New England and California. While the breakeven cost is higher for 80 gallon units than 50 gallon units, the higher net installed costs of an 80 gallon unit lead to the 50 gallon HPWHs being more likely to be cost effective.
Book Synopsis Laboratory Assessment of GE GEH50DFEJSRA Heat Pump Water Heater by : Ben Larson
Download or read book Laboratory Assessment of GE GEH50DFEJSRA Heat Pump Water Heater written by Ben Larson and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Northwest Energy Efficiency Alliance (NEEA) contracted with Ecotope, Inc. and Cascade Engineering Services, Inc. to conduct a laboratory assessment of the GE model #GEH50DFEJSRA heat pump water heater (HPWH) for northern climate installations. Cascade Engineering evaluated the GEH50DFEJSRA using a testing plan developed by Ecotope to assess HPWH performance."--Executive summary.
