Why would a R-744 refrigerant system work well on a fuel cell-powered vehicle?
What will be an ideal response?
The R-744 system can also serve as a source of heat for the passenger compartment through the use of an integrated heat pump. This will lend itself very useful on electric- or fuel cell-powered vehicles (which have little or no waste heat) as a system for both passenger compartment heating and cooling. In addition, with smaller, more fuel-efficient internal combustion engines, the need for a supplemental heater is also growing, especially in the compact diesel market. This system will enable both heating and cooling simultaneously by regulating refrigerant gas flow through both expansion valves in the system.
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Which of the following statements is true of Confucian temples?
A) ?They are more colorful than temples of other Chinese religions. B) ?They have images and idols of gods. C) ?They are built to honor Confucius's teachings, not Confucius himself. D) ?They could easily be transplanted in North America.
Strong critical thinkers with a well-developed moral compass ought to treat those with whom they disagree ________
(a) with respect (b) as ignorant fools (c) as evil human beings (d) as unworthy of respect
Where was printing invented?
a. Germany c. Switzerland b. England d. China
Which moral approach best represents the precautionary principle?
A) ?Natural law ethics B) ?Utilitarianism C) ?Kant's categorical imperative D) ?Care ethics