Download or read book Test of an Improved Gas Engine driven Heat Pump written by and published by . This book was released on 1998 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new generation of natural gas engine-driven heat pump (GEHP) was introduced to the marketplace recently. While the units installed have performed exceptionally well and earned rave reviews for comfort and savings on utility bills, the higher initial cost and relatively long payback time have affected the wide commercialization of this advanced technology. According to a study done for the southeastern US in the Atlanta metropolitan area, the annual operating cost of the GEHP is less than that of a baseline system consisting of a 92% efficiency gas furnace and a SEER 12 air conditioner. The estimated payback time is around 10 years to cover the difference in initial equipment price between the new and the baseline system. It has been projected that a liquid overfeed (LOF) recuperative cycle concept can simplify the hardware design of a GEHP, resulting in reduced cost and improved performance. Laboratory tests have shown that LOF would improve the energy efficiency of a vapor compression unit by 10%. In addition, LOF will reduce the compressor pressure ratio and thereby improve equipment reliability. Based on the assumed performance improvements and cost reduction, a simple payback calculation indicates LOF can reduce the payback time for an improved GEHP considerably in the Atlanta metropolitan area. Laboratory testing of an improved GEHP has been carried out at Oak Ridge National Laboratory. This paper reports on the equipment design modifications required to implement LOF and the results of performance tests at steady-state conditions. The preliminary cooling test results have indicated that the LOF in conjunction with orifice-type expander can be applied to GEHP for cost and performance enhancements. The improvements in energy efficiency will be dependent upon several controlling parameters including the proper refrigeration charge, the selected ambient temperature, and the system operating condition.

Download or read book Design Construction and Testing of a Gas Engine Driven High Temperature Industrial Heat Pump written by Commission of the European Communities and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design Construction and Testing of a Gas Engine Driven High Temperature Industrial Heat Pump written by P. A. Kew and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Testing and Computer Modelling of a Gas Engine driven Heat Pump written by Matthew J. Slater and published by . This book was released on 1998 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book System Modeling of Gas Engine Driven Heat Pump written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: To improve the system performance of the GHP, modeling and experimental study has been made by using desiccant system in cooling operation (particularly in high humidity operations) and suction line waste heat recovery to augment heating capacity and efficiency. The performance of overall GHP system has been simulated by using ORNL Modulating Heat Pump Design Software, which is used to predict steady-state heating and cooling performance of variable-speed vapor compression air-to-air heat pumps for a wide range of operational variables. The modeling includes: (1) GHP cycle without any performance improvements (suction liquid heat exchange and heat recovery) as a baseline (both in cooling and heating mode), (2) the GHP cycle in cooling mode with desiccant system regenerated by waste heat from engine incorporated, (3) GHP cycle in heating mode with heat recovery (recovered heat from engine). According to the system modeling results, by using desiccant system regenerated by waste heat from engine, the SHR can be lowered to 40%. The waste heat of the gas engine can boost the space heating efficiency by 25% in rated operating conditions.

Download or read book Investigation of Gas Engine Driven Heat Pump Systems written by C. Hickman and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Monitoring and Evaluation of a Residential Gas engine driven Heat Pump Volume 1 Cooling Season written by and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gas Fired Endothermic Engine Driven Heat Pumps Test Methods written by British Standards Institute Staff and published by . This book was released on 1917-03-31 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy conservation, Heaters, Refrigerating plant, Space-heating systems, Air-conditioning systems, Heating equipment, Heat pumps

Download or read book Research and Development of a Suitable Gas Engine Driven Heat Pump for Residential Use written by K. Yamagishi and published by . This book was released on 1982 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Monitoring and Evaluation of a Residential Gas engine driven Heat Pump written by James D. Miller and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gas Fired Endothermic Engine Driven Heat Pumps Test Conditions written by British Standards Institute Staff and published by . This book was released on 1917-03-31 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heating equipment, Refrigerating plant, Energy conservation, Space-heating systems, Heat pumps, Air-conditioning systems, Heaters

Download or read book A Gas engine driven Heat Pump for Residential and Light Commercial Use written by Centre for the Analysis and Dissemination of Demonstrated Energy Technologies and published by . This book was released on 1993 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Om Udkastet il en ny Communallov written by and published by . This book was released on 1854 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book BS EN 16905 4 Gas fired Endothermic Engine Driven Heat Pumps written by British Standards Institution and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book UNE EN 16905 4 2018 written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-03 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Feasibility and Design Study of a Gas Engine Driven High Temperature Industrial Heat Pump written by D. B. A. Macmichael and published by . This book was released on 1978* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: