High voltage Positive Temperature Coefficient (PTC) heaters with high heating capacity
are widely used as a main heating equipment in electric vehicles.
(Frigel already supplies "passive" variotherm systems, which suspend cooling during mold filling, allowing the incoming melt to heat the mold, and then turn on cooling flow.) Frigel's new Thermogel THC units have heating capacity
up to 54 kW and cooling capacity up to 180 kW.
Subsequent phases will incorporate the replacement of a failing steam condensate return system with a protected durable condensate return - essential for greater heating capacity
and flexibility as well as the introduction of a complete combined heat and power system with auxiliary boilers for redundant heat capacity.
Today the development of methods of HDH designing and determining its optimum parameters providing the maximum heating capacity
and coefficient of transformation of energy is topical.
The first of these projected models will have a cooling capacity of three tons of refrigeration, coupled with a heating capacity
of 120,000 Btu per hr.
The H2i R2-Series of variable refrigerant flow zoning systems for commercial applications can operate at 100% heating capacity
in temperatures down to 0[degrees]F (-18[degrees]C).
The most powerful model in the line is available with either 18 or 24 kW of heating capacity
, and can also be adapted to heating capacity
of 46 kW.
These refrigerants have a GWP lower than 10 (Arimoto et Al, 2011) but have lower heating capacity
than R-410A and flammability issues (Barve and Cremaschi, 2012).
Figure 2 compares the heating capacity
obtained with R-410A, ARM-70a (3 refrigerant charges) and DR-5 (3 refrigerant charges).
The Model E5 comes with heated platens with a total of 2,000 watts heating capacity
per heated plate.
The pre-existing "TDJ301DM" series, featuring 2.5 kW rated heating capacity
, uses hot-gas bypass technology; it has earned a well reputation in the market, being adopted mainly in delivery trucks servicing convenience stores.