66
HPT 200 • HPT 200C
3. OPERATION OF HEAT PUMPS
3.1. Operating principle
At first sight, the HPT200(C) heat pump water heater is similar to traditional electric hot
water tanks. During its normal operating cycle, the HPT200(C) connected to house
-
hold pipeline and electrical power system does not use as much electric power for the
direct heating of water as traditional electric hot water tanks, but rather, it uses energy
in a more reasonable and efficient way, reaching the same result with an energy use of
less than 70%, as compared to the traditional electric hot water tank.
Heat pump is named after the fact that it is capable to transfer heat from a heat source
of lower temperature to a heat source of higher temperature, i.e. it reverses natural
flow of heat, which goes the higher temperature source to the lower temperature one,
as we already know. The application of the heat pump brings the benefit that it is able
to transfer more energy (in form of heat) than the energy it takes for its operation (in
form of electric power). This way, heat pump is able to extract energy from heat sourc
-
es existing in its environment without “expenditure”, depending on the type and avail
-
ability of the heat sources.
The HPT200(C) heat pump water heater extracts heat from stuffy internal air to be re
-
freshed, thus it increases the efficiency of water heating. It is possible to select from
several different configurations for the use of environmental air, which enables various
applications of the appliance adjusted to the different operating conditions.
The HPT200(C) heat pump water heater has been planned and manufactured to speci
-
fications relating to the energy performance of buildings. The appliance eables a more
rational energy use and results in operational cost savings. As opposed to other alter-
native systems used to produce sanitary hot water, heat extraction from free energy
sources definitely reduces the environmental effects of emissions into the atmosphere.
3.2. Description of operation
Based on the facts mentioned above, the “energetic capacity” of heat pumps is based
on heat transfer through heat extraction from a free source (in this case, the environ
-
mental air) with lower temperature than the material to be heated (in this case, the
water in the tank of the water heater). Electricity is required for the operation of the
compressor (that causes the change of physical state of the cooling fluid in the cooling
circuit), and thus, the transfer of heat energy. The cooling fluid passes along a closed
hydraulic circuit, where the fluid changes into liquid or gaseous physical state, subject
to its temperature and pressure. The main components of the hydraulic circuit (Figure
3.2.-1) are as follows:
1 – compressor that enables the completion of the cycle by increasing the pressure
and the temperature of the cooling fluid (which is of gaseous physical state in this
cycle).
Summary of Contents for HP-TOWER HPT200
Page 140: ...140 HPT 200 HPT 200C ...
Page 141: ...141 ...
Page 142: ...142 HPT 200 HPT 200C Jegyzetek Notes Notes ...
Page 143: ...143 Jegyzetek Notes Notes ...
