This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What are the advantages of a drop-down side curtain on a passively cooled greenhouse versus a ... (Read 45 times)

lidoalex

  • Hero Member
  • *****
  • Posts: 538
on: Jul 22, 2018
What are the advantages of a drop-down side curtain on a passively cooled greenhouse versus a roll-up side curtain?
 
  What will be an ideal response?

Question 2

What is the current trend in passively versus actively cooled greenhouses?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

debra928

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 22, 2018
Answer to Question 1

a) When the drop-down curtain begins to open in cold weather, the
incoming cold air enters above plants where it mixes with hot air before reaching
the plants. In a roll-up system the cold air enters directly on plants chilling those
close to the curtain. b) In a windy climate and a greenhouse with an overhead
sprinkler watering system, the roll-up curtain allows air to blow in on the plants
which could divert water from plants on the windward side.

Answer to Question 2

The trend is toward a higher proportion of passively cooled greenhouses.


lidoalex

  • Member
  • Posts: 538
Reply 2 on: Jul 22, 2018
Gracias!

nathang24

  • Member
  • Posts: 314
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

The effects of germ-line versus somatic cell mutations. The effects of germ-line versus somatic cell mutations.
Greenstick Only one side of the shaft is broken, and the other is bent (like a greenstick); usually Greenstick Only one side of the shaft is broken, and the other is bent (like a greenstick); usually
A typical module-controlled high-side driver (HSD) where the module itself supplies the electrical ... A typical module-controlled high-side driver (HSD) where the module itself supplies the electrical ...
Apply deep circular friction with the fingertips to the erector muscles on the right side, moving ... Apply deep circular friction with the fingertips to the erector muscles on the right side, moving ...
Adjust drape for abdominal massage, and stand at the side of the table facing the head. Place hands ... Adjust drape for abdominal massage, and stand at the side of the table facing the head. Place hands ...
How much voltage does the resistor drop in Figure 10-2? a. 59 mV b. 19.94 V c. 20 V d. 10 V How much voltage does the resistor drop in Figure 10-2? a. 59 mV b. 19.94 V c. 20 V d. 10 V
Video: Isovolumetric VC, Ventricular ejection, Isovolumetric & Passive ventricular filling

For a complete list of videos, visit our video library