A liquid-to-liquid heat exchanger uses a heat-transfer fluid that circulates through the solar collector, absorbs heat, and then flows through a heat exchanger to transfer its heat to water in a storage tank. Heat-transfer fluids, such as antifreeze, protect the solar collector from freezing in cold weather.
Answer:
GigaPOP
Explanation:
<em>A gigabit point of presence, also known as GigaPOP is a single entry point to Internet2, which is a high-speed IP network managed by institutions and other organizations. Gigabit Points of Presence generally handle data transmission rates of one gigabit per second or more.</em>
