32 



KGGS IN COLD STORAGE. 



Questions 

 rel atinar to 

 circulation. 



Answers to 

 Query 1. 



chanical forced circulation system. Some of these 

 will continue to gain favor because of the improved 

 results obtained by their use. The main requisite 

 in any air circulating- system is an ability to cause an 

 equal distribution of the moving- air, as it comes from 

 the moisture absorbing- surfaces, forcing it uniformly 

 to all parts of the room and compelling- it to flow 

 throug-h and around the. piles of stored g-oods. As a 

 secondary consideration may be mentioned the equal- 

 ization of temperature and humidity in all parts of the 

 room. The writer is somewhat biased in favor of 

 forced circulation, having- developed a very complete 

 system on this line, with some new features. Aside 

 from a matter of economy of space and operation, 

 the system employed matters little, if an effective cir- 

 culation is produced. 



The questions bearing 5 upon circulation contained 

 in the list of inquiries sent out by the writer are as 

 follows : 



First. In piping- your rooms what provision was 

 made for air circulation? 



Second. What difference in- temperature do you 

 notice in different parts of the same room? 



Third. Do you use a fan or any kind of mechanical 

 device for maintaining- a circulation of air in the rooms? 



More answers were received on this subject than 

 on the subject of humidity, but not exceeding- one- 

 third contained tangible replies to all three inquiries. 

 Several of the answers confounded circulation with 

 ventilation, as before alluded to. Question 1, in par- 

 ticular, was badly neglected, indicating, no doubt, that 

 no provision was made for circulation in a majority of 

 cases. The common device in use for causing air to 

 circulate more rapidly over the cooling coils, when 

 they are placed directly in the room, is some form 

 of screen, mantle, apron, false ceiling or partition, as 

 illustrated in Figs. 3, 4 and 5. Many of these have 

 been put up after the house has been in operation for 



