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[TRNSYS-users] Problems with the sun... (probably an easy one for people used to TRNSYS)

To: "trnsys-users@engr.wisc.edu" <trnsys-users@engr.wisc.edu>
Subject: [TRNSYS-users] Problems with the sun... (probably an easy one for people used to TRNSYS)
From: Nicolas Heijmans <nicolas.heijmans@bbri.be>
Date: Thu, 29 Jan 2009 11:22:47 +0100
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Thread-index: AcmB9R5lvpmHuoXkQTGz9YVg4yIkrg==
Thread-topic: Problems with the sun... (probably an easy one for people used to TRNSYS)

Hello,

I'm a new user of TRNSYS and I have a problem with the sun (TYPE 16i).

As far as I understood, the type 16 is written in such a way that the interpolation of data is correct.

But I have a dummy sun, with a permanent 36 kJ/h.m², 100% diffuse.

The data are given at each hour, and I do a simulation with a time step of 10 minutes.

I would expect that the output of TYPE16i would be 36 kJ/h at each time step, but that's not the case. The values are oscillating…

Could you explain me why ?

(The model is attached, all files should be placed on C:)

Kind regards,

Nicolas Heijmans, Belgium

Ce fichier contient les données meteo de la TRY d'Uccle.				
Il doit être lu par un TYPE9a				
Les valeurs sont données par pas de temps de 10 minutes et sont en °C et J/h.m² (=10 W/m² = 10 J/s.m² * 3600 s/h / 1000 kJ/J = 36 J/h.m²)				
Date	T°	Global	Diffus	Beam
0	0	36	36	0
1	0	36	36	0
2	0	36	36	0
3	0	36	36	0
4	0	36	36	0
5	0	36	36	0
6	0	36	36	0
7	0	36	36	0
8	0	36	36	0
9	0	36	36	0
10	0	36	36	0
11	0	36	36	0
12	0	36	36	0
13	0	36	36	0
14	0	36	36	0
15	0	36	36	0
16	0	36	36	0
17	0	36	36	0
18	0	36	36	0
19	0	36	36	0
20	0	36	36	0
21	0	36	36	0
22	0	36	36	0
23	0	36	36	0
24	0	36	36	0
25	0	36	36	0
26	0	36	36	0
27	0	36	36	0
28	0	36	36	0
29	0	36	36	0
30	0	36	36	0
31	0	36	36	0
32	0	36	36	0
33	0	36	36	0
34	0	36	36	0
35	0	36	36	0
36	0	36	36	0
37	0	36	36	0
38	0	36	36	0
39	0	36	36	0
40	0	36	36	0
41	0	36	36	0
42	0	36	36	0
43	0	36	36	0
44	0	36	36	0
45	0	36	36	0
46	0	36	36	0
47	0	36	36	0
48	0	36	36	0
49	0	36	36	0
50	0	36	36	0
51	0	36	36	0
52	0	36	36	0
53	0	36	36	0
54	0	36	36	0
55	0	36	36	0
56	0	36	36	0
57	0	36	36	0
58	0	36	36	0
59	0	36	36	0
60	0	36	36	0
61	0	36	36	0
62	0	36	36	0
63	0	36	36	0
64	0	36	36	0
65	0	36	36	0
66	0	36	36	0
67	0	36	36	0
68	0	36	36	0
69	0	36	36	0
70	0	36	36	0
71	0	36	36	0
72	0	36	36	0
73	0	36	36	0
74	0	36	36	0
75	0	36	36	0
76	0	36	36	0
77	0	36	36	0
78	0	36	36	0
79	0	36	36	0
80	0	36	36	0
81	0	36	36	0
82	0	36	36	0
83	0	36	36	0
84	0	36	36	0
85	0	36	36	0
86	0	36	36	0
87	0	36	36	0
88	0	36	36	0
89	0	36	36	0
90	0	36	36	0
91	0	36	36	0
92	0	36	36	0
93	0	36	36	0
94	0	36	36	0
95	0	36	36	0
96	0	36	36	0
97	0	36	36	0
98	0	36	36	0
99	0	36	36	0
100	0	36	36	0
101	0	36	36	0
102	0	36	36	0
103	0	36	36	0
104	0	36	36	0
105	0	36	36	0
106	0	36	36	0
107	0	36	36	0
108	0	36	36	0
109	0	36	36	0
110	0	36	36	0
111	0	36	36	0
112	0	36	36	0
113	0	36	36	0
114	0	36	36	0
115	0	36	36	0
116	0	36	36	0
117	0	36	36	0
118	0	36	36	0
119	0	36	36	0
120	0	36	36	0
121	0	36	36	0
122	0	36	36	0
123	0	36	36	0
124	0	36	36	0
125	0	36	36	0
126	0	36	36	0
127	0	36	36	0
128	0	36	36	0
129	0	36	36	0
130	0	36	36	0
131	0	36	36	0
132	0	36	36	0
133	0	36	36	0
134	0	36	36	0
135	0	36	36	0
136	0	36	36	0
137	0	36	36	0
138	0	36	36	0
139	0	36	36	0
140	0	36	36	0
141	0	36	36	0
142	0	36	36	0
143	0	36	36	0
144	0	36	36	0
145	0	36	36	0
146	0	36	36	0
147	0	36	36	0
148	0	36	36	0
149	0	36	36	0
150	0	36	36	0
151	0	36	36	0
152	0	36	36	0
153	0	36	36	0
154	0	36	36	0
155	0	36	36	0
156	0	36	36	0
157	0	36	36	0
158	0	36	36	0
159	0	36	36	0
160	0	36	36	0
161	0	36	36	0
162	0	36	36	0
163	0	36	36	0
164	0	36	36	0
165	0	36	36	0
166	0	36	36	0
167	0	36	36	0
168	0	36	36	0
169	0	36	36	0
170	0	36	36	0
171	0	36	36	0
172	0	36	36	0
173	0	36	36	0
174	0	36	36	0
175	0	36	36	0
176	0	36	36	0
177	0	36	36	0
178	0	36	36	0
179	0	36	36	0
180	0	36	36	0
181	0	36	36	0
182	0	36	36	0
183	0	36	36	0
184	0	36	36	0
185	0	36	36	0
186	0	36	36	0
187	0	36	36	0
188	0	36	36	0
189	0	36	36	0
190	0	36	36	0
191	0	36	36	0
192	0	36	36	0
193	0	36	36	0
194	0	36	36	0
195	0	36	36	0
196	0	36	36	0
197	0	36	36	0
198	0	36	36	0
199	0	36	36	0
200	0	36	36	0
201	0	36	36	0
202	0	36	36	0
203	0	36	36	0
204	0	36	36	0
205	0	36	36	0
206	0	36	36	0
207	0	36	36	0
208	0	36	36	0
209	0	36	36	0
210	0	36	36	0
211	0	36	36	0
212	0	36	36	0
213	0	36	36	0
214	0	36	36	0
215	0	36	36	0
216	0	36	36	0
217	0	36	36	0
218	0	36	36	0
219	0	36	36	0
220	0	36	36	0
221	0	36	36	0
222	0	36	36	0
223	0	36	36	0
224	0	36	36	0
225	0	36	36	0
226	0	36	36	0
227	0	36	36	0
228	0	36	36	0
229	0	36	36	0
230	0	36	36	0
231	0	36	36	0
232	0	36	36	0
233	0	36	36	0
234	0	36	36	0
235	0	36	36	0
236	0	36	36	0
237	0	36	36	0
238	0	36	36	0
239	0	36	36	0
240	0	36	36	0

Attachment: DummySun.tpf
Description: DummySun.tpf

Follow-Ups:
- Re: [TRNSYS-users] Problems with the sun... (probably an easy one for people used to TRNSYS)
  - From: Adrien JEZEQUEL - ITF <a.jezequel@itf.biz>

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