I have not heard of hvacr. HVAC stands for Heating Ventilation and Air Conditioning. and Refrigeration is the r
In many ways air conditioning and refrigeration systems are very similar. Both use specially designed chemicals, the physical effects of the compression and expansion of gases, and the conversion of gas to liquid to reduce the temperature of air. The varying uses of these systems, however, mean refrigeration and air conditioning systems have a handful of key differences in the design and operation.
Low refrigerant charge?
An Electro Explosive device is a bomb that is triggered by an electric charge.
Heating,ventilation,air conditioning,and refrigeration. only field I can think of... or by work do you mean work = power a.k.a. Btu/hour
A family of inert, nontoxic, and easily liquified chemicals used in refrigeration, air conditioning, packaging, insulation, or as solvents and aerosol propellants. Because CFCs are not destroyed in the lower atmosphere they drift into the upper atmosphere where their chlorine components destroy ozone.
It doesn't need refrigeration.
if you mean hot sauce no required refrigeration
the bomb
No, in terms of destruction the hydrogen bomb is the strongest, but if you mean killing the plutonium bomb is the one that does the most killing.
i would think its on.
if by bomb you mean atomic bomb, it was truman. otherwise bombs predate the existence of the US.