Optimal heat pumps for solar-assisted heat-pump systems
Abstract
Work at Brookhaven National Laboratory (BNL) investigates the design of optimal heat pumps for solar assisted heat pump (SAPH) systems. Heat pump designs suitable for two generic systems, identified in the course of recent analytical work, are being studied. These are series SAHP systems operating at evaporator temperatures in the -5 to 10 C range and those operating at evaporator temperatures in the 10 to 35 C range. A heat pump simulator has been constructed with liquid based source subsystem and two load subsystems, one for testing air cooled condensers and one for testing water cooled condensers. Heat pumps tested were composed of various components including several types of variable and fixed capacity compressors, two types of expansion devices, and heat exchangers varying in size and type.
- Publication:
-
Presented at the Intern. Solar Energy Soc. Solar World Forum
- Pub Date:
- 1981
- Bibcode:
- 1981ises.conf...23C
- Keywords:
-
- Condensers;
- Design Analysis;
- Heat Exchangers;
- Heat Pumps;
- Solar Heating;
- Air Conditioning;
- Compressors;
- Power Conditioning;
- Power Supplies;
- Thermal Expansion;
- Fluid Mechanics and Heat Transfer